退出登录,清除Session
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protected void Button1_Click(object sender, EventArgs e)
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{
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if (Session["UserName"] != null)
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{
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Session.Remove("UserName");
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Session.RemoveAll();
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Response.Cookies["UserName"].Expires = DateTime.Now;
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}
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Page.RegisterStartupScript("","<script>window.top.document.location.href='index.aspx';</script>");
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}
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